Title

Synthesis and Characterization of Large Stereoregular Organosiloxane Cycles

Document Type

Article

Language

eng

Publication Date

7-20-1998

Publisher

Elsevier

Source Publication

Journal of Organometallic Chemistry

Source ISSN

0022-328X

Abstract

The large stereoregular phenyltrimethylsiloxysiloxane macrocycles of general formula [PhSi(OSiMe3)O]n (n=6 and 12) have been selectively obtained with high yields by trimethylsilylation of cage-like oligophenylmetallasiloxanes (OPMS) which we described earlier. The compounds 3 (n=6) and 4 (n=12) have been characterized by NMR-spectroscopy method and by single crystal X-ray analysis. This investigation showed unambiguously that the siloxane macrocycles keep their size and configuration (the same as in the initial OPMS) during the trimethylsilylation. Thus a synthetic route for obtaining large stereoregular siloxane macrocycles has been developed.

Comments

Journal of Organometallic Chemistry, Vol. 562, No. 2 (July 20, 1998): 141-151. DOI.

Sergey V. Lindeman was affiliated with the Russian Academy of Sciences at the time of publication.

Share

COinS